JPS6233826Y2 - - Google Patents
Info
- Publication number
- JPS6233826Y2 JPS6233826Y2 JP2598682U JP2598682U JPS6233826Y2 JP S6233826 Y2 JPS6233826 Y2 JP S6233826Y2 JP 2598682 U JP2598682 U JP 2598682U JP 2598682 U JP2598682 U JP 2598682U JP S6233826 Y2 JPS6233826 Y2 JP S6233826Y2
- Authority
- JP
- Japan
- Prior art keywords
- lever
- kelly
- keel
- stopper
- bar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000005553 drilling Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2598682U JPS58129981U (ja) | 1982-02-25 | 1982-02-25 | ア−スドリルのケリ−バ |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2598682U JPS58129981U (ja) | 1982-02-25 | 1982-02-25 | ア−スドリルのケリ−バ |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58129981U JPS58129981U (ja) | 1983-09-02 |
| JPS6233826Y2 true JPS6233826Y2 (fr) | 1987-08-29 |
Family
ID=30037935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2598682U Granted JPS58129981U (ja) | 1982-02-25 | 1982-02-25 | ア−スドリルのケリ−バ |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58129981U (fr) |
-
1982
- 1982-02-25 JP JP2598682U patent/JPS58129981U/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58129981U (ja) | 1983-09-02 |
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